Fix helm install docs. (#107)

README.md

@@ -19,7 +19,7 @@ For the special case of block volumes, the filesystem-expansion has to be perfor
 You have to set the devicePattern for your hardware to specify which disks should be used to create the volume group.
 
 ```bash
-helm install --repo https://helm.metal-stack.io mytest helm/csi-driver-lvm --set lvm.devicePattern='/dev/nvme[0-9]n[0-9]'
+helm install --repo https://helm.metal-stack.io mytest csi-driver-lvm --set lvm.devicePattern='/dev/nvme[0-9]n[0-9]'
 ```
 
 Now you can use one of following storageClasses: